How to treat a 7-month-old baby with a fever for two days, ranging from 37°C to 38°C?

Patient's question:

Fever, cough with phlegm, fever and cough improved but still have phlegm, intermittent fever with persistent phlegm.
Two days ago, the weather was hot, phlegm occasionally appeared. Yesterday, the weather turned cold, causing some belching. Last night, I kicked off the blanket. Woke up at 10 a.m. and started belching with thick, clear nasal mucus. Had a high fever of 37.8°C.
Previous treatment and effectiveness: Took cold medicine, anti-inflammatory drugs, and Xiao Rui Zhi fever-reducing medicine. By 2 p.m., the fever returned to 38°C. Took fever and anti-inflammatory medicine, which lowered the fever. No fever at night, but at 8 a.m. the next morning, the fever returned to 38°C. Took fever and anti-inflammatory medicine again, and the fever subsided. Now, it has been consistently around 37.3°C to 37.5°C.
What kind of help is desired: Is this recurring low fever a concern? Is it urgent? Should I focus solely on fever and anti-inflammatory medications?

Doctor's answer:

Generally, the early stages of a fever are usually caused by a viral infection. You can start by giving the baby some children's cold medicine. In addition to ribavirin granules, make sure the baby drinks plenty of water. If coughing and phlegm reappear, you can then add anti-inflammatory medications such as Azithromycin or Cefixime granules. Pay close attention to the baby's condition. If the symptoms worsen, it's best to take the baby to the hospital to consult a doctor.

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